Pump packing means



Sept. 6, 1938., J. H. ROBERTS PUMP PACKING MEANs Filed May 16, 1936 2 Shee r,sShet 1 Inventor h m es ff Faier/s A ttorney;

Sept. 6, 1938. J. H. ROBERTS PUMP PACKING MEANS Filed May 16, 1956 2 Sheets-Sheet 2 I Inventor @222 ea H 120$ erZ-S A iiorneys Patented Sept. 6, 1938 4 UNITED STATES PATENT OFFICE PUMP PACKING MEANS James H. Roberts, Osceola, Ark.

Application May 16, 1936, Serial No. 80,197 1 Claim. (Cl. cos-36.2)

This invention relates to new and useful imwhich are of conical shape and bored to receive provements in packing means for water pumps the shaft l3. These conical packing elements such as are employed in automobile engine cool- Ill-I9 extend into the seats l'|--l8 and each is ing systems. provided with a metallic cap 20 against which the The principal object of the present invention ends of the coiled spring 2| engage. The spring 5 is to provide packing means which will be self serves to urge the packing elements l9 apart and adjusting and require practically no manual care into their corresponding seats ll-IB. A fitting over a considerable period of time. 22 is provided in the side of the bowl 5 through Another important object of the invention is to which grease can be forced into the chamber 23. provide an efficient packing means for water The modified form of the invention shown in 1G pumps, substantially simpler in construction and Figures 3 to 5, inclusive, consists of the casting 6 of lower cost to manufacture than constructions having the passageway 1* therein for water and of this character now in general use. also the hose attaching nipple 9. Reference These and various other important objects and character l3 represents the pump shaft carrying advantages of the invention will become apparthe rotor H The bowl 5* is a separate unit 15 ent to the reader of the following specification. from the casting B, the casting 6 having the In the drawings: front wall Ill corresponding to the partition l0 Figure 1 represents a top plan view of the packin the form of the invention shown in Figure 2- ing bowl of the water pump; As is shown in Figure 3, the casting 6 is provided Figure 2 is a section on line 2-2 of Figure l; with barrel-like formations 24 with which the 20 Figure 3 is a top plan view of a modified form apertured ears on the bowl 5 register. Bolts of packing structure; are inserted through the ears and the barrels and Figure 4 is a front elevational view of the modidriven into the engine water jacket. fled form of the invention; In the barrel formation II of the front wall :5 Figure 5 is a sectional view on line 55 of I0 is the bronze bushing [2 having the conical- 25 Figure 3. shaped seat l8 for receiving the conical-shaped Referring to Figures 1 and 2, it can be seen that packing element I9. This packing element l9 numeral 5 represents the bowl formed integrally is provided with the cap 20. with the casting 6 which has the water passage- The constricted portion of the bowl 5 has a :1) way 1 therein and which is outwardly flanged as nut 26 threaded into the same. Numeral 21 repat 8 to permit attachment of the same to the outresents a bronze bushing in this constricted porside of the water jacket of an internal combustion tion of the bowl 5 and between this bushing and engine. This casting 6 is provided with the usual the nut 26 is the packing gasket 28. hose connecting nipple 9. A cross-pin 29 is provided in the shaft I3 and The casting 6 is separated from the interior of carries the collar 30. Numeral 3| represents a 35 the bowl 5 by the partition III which has the cap engaged over the collar 30,but swivelly therebarrel formation H with the bronze bushing l2 with, and between this and the collar are the ball therein through which the pump shaft I3 extends. bearings 32. A coiled compressible spring 2| The inner end of this pump shaft I3 is equipped is interposed between the cap 20 and the cap 3|.

40 with the usual pump rotor I, while the outer end Thus, one end of the spring is swivelly connected 40 extends beyond the bowl so as to accommodate a to the shaft l3, while the other end impinges pulley (not shown). against the cap 20 of the packing element l9.

In the partition I0 is an oil duct Ill to which Grease can be fed into the bowl 5 through the oil can be supplied through the opening H fitting 22 Figure 2. While the foregoing specification sets forth the 45 The outer constructed portion of the bowl 5 invention in specific terms, it is to be understood has a plug l5 threaded. into the same and this that numerous changes in the shape, size, and plug is provided with radially extending ducts [6 materials may be resorted to without departing into which oil can be placed through the opening from the spirit and scope of the invention, as

I 6 in bowl 5, Figure 2. The inner end of the claimed hereinafter. 50 plug I5 is provided with the conical-shaped seat Having described the invention, what is claimed ll, and as is clearly shown in Figure 2, the opas new is: posed end of the barrel II and 0f the bushing In combination, a bowl having a constricted end are also provided with a seat ll! of conical shape. portion in h h i a large thr aded opening nd Numerals Ill-20 represent e peeking e e e an oil inlet leading to said opening, and also hav- 56 ing adjacent to its opposite end a partition with a barrel and an oil duct leading through the partition into said barrel, 8. bushing in said barrel and having an opening in coincidence with said oil duct, said barrel and bushing being provided at their ends adjacent the interior 0! the bowl with a conical seat, a threaded piug occupying the large opening in the constricted end of the bowl and having a bore and a conical seat at the inner end or the bore and also having an oil duct in coincidence with said oil inlet, a shaft bearing in said bushing and the bore of the plug and extending through the bowl, conical packing elements about the shaft and disposed in said seats, caps over the opposed ends of said packing elements, and a spring in the bowl and about the shaft and interposed between said caps.

' JAMES H. ROBERTS. 

